为 Android 首屏创建 AppWidget，androidappwidget,MovieSearchW

为 Android 首屏创建 AppWidget，androidappwidget,MovieSearchW

MovieSearchWidget.java

package com.javacodegeeks.android.apps.moviesearchapp.widget;import android.app.PendingIntent;import android.app.Service;import android.appwidget.AppWidgetManager;import android.appwidget.AppWidgetProvider;import android.content.ComponentName;import android.content.Context;import android.content.Intent;import android.net.Uri;import android.os.IBinder;import android.widget.RemoteViews;import com.javacodegeeks.android.apps.moviesearchapp.R;import com.javacodegeeks.android.apps.moviesearchapp.model.Movie;import com.javacodegeeks.android.apps.moviesearchapp.services.MovieSeeker;public class MovieSearchWidget extends AppWidgetProvider {   private static final String IMDB_BASE_URL = "http://m.imdb.com/title/";   @Override    public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {        // To prevent any ANR timeouts, we perform the update in a service        context.startService(new Intent(context, UpdateService.class));    }    public static class UpdateService extends Service {       private MovieSeeker movieSeeker = new MovieSeeker();        @Override        public void onStart(Intent intent, int startId) {            // Build the widget update for today            RemoteViews updateViews = buildUpdate(this);            // Push update for this widget to the home screen            ComponentName thisWidget = new ComponentName(this, MovieSearchWidget.class);            AppWidgetManager manager = AppWidgetManager.getInstance(this);            manager.updateAppWidget(thisWidget, updateViews);        }      public RemoteViews buildUpdate(Context context) {         Movie movie = movieSeeker.findLatest();                        String imdbUrl = IMDB_BASE_URL + movie.imdbId;         // Build an update that holds the updated widget contents         RemoteViews updateViews = new RemoteViews(context.getPackageName(), R.layout.widget_layout);         updateViews.setTextViewText(R.id.app_name, getString(R.string.app_name));         updateViews.setTextViewText(R.id.movie_name, movie.name);         Intent intent = new Intent();         intent.setAction("android.intent.action.VIEW");         intent.addCategory("android.intent.category.BROWSABLE");         intent.setData(Uri.parse(imdbUrl));         PendingIntent pendingIntent =             PendingIntent.getActivity(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);         updateViews.setOnClickPendingIntent(R.id.movie_name, pendingIntent);         return updateViews;      }        @Override        public IBinder onBind(Intent intent) {            // We don't need to bind to this service            return null;        }    }}

movie_search_widget.xml

<?xml version="1.0" encoding="utf-8"?><appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android"    android:minWidth="146dip"    android:minHeight="72dip"    android:updatePeriodMillis="10000"    android:initialLayout="@layout/widget_layout"/>

/res/layout/widget_layout.xml

<?xml version="1.0" encoding="utf-8"?><appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android"    android:minWidth="146dip"    android:minHeight="72dip"    android:updatePeriodMillis="10000"    android:initialLayout="@layout/widget_layout"/>

/res/layout/widget_layout.xml

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:id="@+id/widget"    android:layout_width="fill_parent"    android:layout_height="wrap_content"    android:focusable="true"    style="@style/WidgetBackground">    <TextView        android:id="@+id/app_name"        android:layout_width="wrap_content"         android:layout_height="wrap_content"        android:layout_marginTop="14dip"        android:layout_marginBottom="1dip"        android:includeFontPadding="false"        android:singleLine="true"        android:ellipsize="end"        style="@style/Text.WordTitle" />    <TextView          android:id="@+id/movie_name"        android:layout_width="fill_parent"         android:layout_height="wrap_content"        android:layout_below="@id/app_name"        android:paddingRight="5dip"        android:paddingBottom="4dip"        android:includeFontPadding="false"        android:lineSpacingMultiplier="0.9"        android:maxLines="4"        android:fadingEdge="vertical"        style="@style/Text.Movie" /></RelativeLayout>

res/values/styles.xml

<?xml version="1.0" encoding="utf-8"?><resources>    <style name="WidgetBackground">        <item name="android:background">@drawable/widget_bg</item>    </style>    <style name="Text">    </style>    <style name="Text.Title">        <item name="android:textSize">16sp</item>        <item name="android:textStyle">bold</item>        <item name="android:textColor">@android:color/black</item>    </style>    <style name="Text.Movie">        <item name="android:textSize">13sp</item>        <item name="android:textColor">@android:color/black</item>    </style></resources>

AndroidManifest.xml

<application android:icon="@drawable/icon" android:label="@string/app_name">...             <!-- Broadcast Receiver that will process AppWidget updates -->        <receiver android:name=".widget.MovieSearchWidget" android:label="@string/widget_name">            <intent-filter>                <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />            </intent-filter>            <meta-data android:name="android.appwidget.provider" android:resource="@xml/movie_search_widget" />        </receiver>        <!-- Service to perform web API queries -->                <service android:name=".widget.MovieSearchWidget$UpdateService" />        ...</application>